Preverjanje merilnega sistema za določanje hitrosti zraka v vetrovniku

Letonje, Jure (author), Bobovnik, Gregor (mentor), Kutin, Jože (co-mentor)

Pri raziskavah na področju aerodinamike in za namen umerjanja merilnikov hitrosti zraka uporabljamo vetrovnike. Njegov namen je, da v merilni sekciji zagotavlja stabilen in homogen tok zraka. V tem delu smo preverili merilni sistem, ki ga vetrovnik uporablja za določanje hitrosti toka zraka v merilni sekciji. Preverili smo merilno in programsko opremo ter na koncu naredili primerjalno meritev hitrosti z drugim merilnikom. Ugotavljamo, da je kljub nekaterim pomanjkljivostim, merilni sistem ustrezen. Smo pa vseeno podali nekaj predlogov za njegovo izboljšavo.

• Language: Slovenian
• Keywords: vetrovniki, hitrost zraka, gostota zraka, Venturijeva cev, preverjanje
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [J. Letonje]
• Year: 2019
• Number of pages: XXI, 48 str.
• PID: 20.500.12556/RUL-108270
• UDC: 533.6.071:531.7(043.2)
• COBISS.SI-ID: 16707867
• Publication date in RUL: 23.06.2019

Secondary language

• Language: English
• Title: Verification of the air velocity measuring system in a wind tunnel

Abstract

Use of wind tunnels is important in the aerodynamics and for calibration of air velocity sensors. Its purpose is to generate a stable and homogenous air velocity field. In this thesis we verified the measuring system of the wind tunnel, which is used to determine air velocity in the measuring section. We verified the measuring equipment and the software and made final comparison with another air velocity meter. Despite some shortcomings, the measuring system is found to be suitable. Nevertheless, we made some suggestions for its improvement.

• Keywords: wind tunnels, air velocity, air density, Venturi tube, verification